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产生冠军Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 26594 Accepted Submission(s): 11947 Problem Description 有一群人，打乒乓球比赛，两两捉对撕杀，每两个人之间最多打一场比赛... 阅读全文
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题目链接：http://codeforces.com/gym/100889/problem/B B. Backward and Forward time limit per test 2.0 s memory limit per test 256 MB input standard input output standard output An array is called a 'Mirror'... 阅读全文
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夹角有多大(题目已修改,注意读题)Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 25012 Accepted Submission(s): 9761 Problem Description 时间过的好快，一个学期就这么的过去了，xh... 阅读全文
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Wow! Such Doge!Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4477 Accepted Submission(s): 2597 Problem Description Chen, Adrian (November 7... 阅读全文
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Girls' research Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 5730 Accepted Submission(s): 2126 阅读全文
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M. Make Cents? time limit per test 6.0 s memory limit per test 256 MB input standard input output standard output Every year, an elephant qualifies to the Arab Collegiate Programming Competition. He g... 阅读全文
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最长回文 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 35727 Accepted Submission(s): 13067 Problem 阅读全文
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杨辉三角Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 104618 Accepted Submission(s): 41990 Problem Description 还记得中学时候学过的杨辉三角吗？具体的定义这里不再描述，你可以参... 阅读全文
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The sum problemTime Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 35412 Accepted Submission(s): 10612 Problem Description Given a sequence 1,2,3... 阅读全文
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空心三角形Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 66621 Accepted Submission(s): 17555 Problem Description 把一个字符三角形掏空，就能节省材料成本，减轻重量，但关键是为了追... 阅读全文